js解压ZIP数据

js解压ZIP数据

第一步：

在html中使用script标签引入pako.min.js文件

<script src="https://cdnjs.cloudflare.com/ajax/libs/pako/2.0.4/pako.min.js"></script>

第二步：

function Utf8ArrayToStr(array) {var out, i, len, c;var char2, char3;out = "";len = array.length;i = 0;while (i < len) {c = array[i++];switch (c >> 4) {case 0: case 1: case 2: case 3: case 4: case 5: case 6: case 7:out += String.fromCharCode(c);break;case 12: case 13:char2 = array[i++];out += String.fromCharCode(((c & 0x1F) << 6) | (char2 & 0x3F));break;case 14:char2 = array[i++];char3 = array[i++];out += String.fromCharCode(((c & 0x0F) << 12) |((char2 & 0x3F) << 6) |((char3 & 0x3F) << 0));break;}}return JSON.parse(out);
}

第三步：

解压zip数据

// 解压zip数据
function unzip(b64Data) {var strData = atob(b64Data);var charData = strData.split('').map(function (x) { return x.charCodeAt(0) });var binData = new Uint8Array(charData);var data = pako.inflate(binData);return Utf8ArrayToStr(data);
}

举例：

const data = "";
const datalist = unzip(data);
console.log(datalist)